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STI is dedicated to the design, development and manufacturing of high quality ATV and UTV tires. Their engineers are committed to developing tires that meet the highest standards and provide the greatest value to their customers. Rocky Mountain ATV/MC has many kinds of STI ATV tires, made for sand, snow, mud, tracks and trails. You can be sure any tire that Rocky Mountain ATV/MC sells is durable and built to last, but we also strive to provide incredible prices as well.
If you need two STI ATV tires, make sure you check out our ATV Tire and Wheel Builder Package which can save you up to 56%. Simply choose two tires and wheels using our filters search that will find the tires to fit your machine perfectly. Then our trained professionals will mount them for free and get them ready to be shipped along with the free valve stems you receive with your package. In addition, you also receive free ground shipping with any ATV Tire and Wheel Package.
Ronald in PA
Used these for one year and sold them, they are great for mud, but on hard pack they ride hard, not as bad as Mega Mayhems but still. Rocks forget about they make technical riding more difficult. Sold them and switched to STI Black Diamonds XTR and got out of just as many or more mud holes and ride much better.Read All Reviews
Ronald in PA
I had these on. Kingquad on 26x12 and they run small measure 25.5 without a pouch. On my RZR 27x14's they measure true it size and are nearly as tall as mega mayhem 28's. Love these tires ride amazing and get you out of anything. True all around. Rock, snow, mud hardback tire.Read All Reviews
Matt in WA
I bought these to replace some bald tires. They hooked up great in the sand. Only one trip on them so far, but they seem to be well reviewed. I just ordered a matching set for the front of the bike. If I continue to like them, I will be getting a set for my other quad (350 Warrior) ---- Cheap price, 6ply rating = right tire for recreational ATV useRead All Reviews
Brandon in MI
Love these tires for the price you can't beat them..pushing snow over my head lights of my 4wheeler to break trail to my deer blind and kept it in 4 wheel drive and full throttle they just kept digging like no other and when I thought I'd get stuck I didn't they kept digging and moving. Very happy with these tires my dad will be getting a set for his 4 wheeler and ranger.Read All Reviews